@TR71777 have you tried with loading by default with MpMap=1 in trainerV.ini ,
Also if you have openinteriors you have to edit the ini too.
If it's not working IMO it can be gameconfig.xml not allowing enough memory to the online map

Please god, destroy GTA Online and BringBackSinglePlayer .. How the best game slowly became the worst :(

@TR71777 open trainerV.ini in GTA folder, use ctrl+f and copy "MpMap" when you find it then change the value 0 with1 .
And the Same with OpenInteriors.ini "loadMultiplayerMap" and change the value with 1.

Please god, destroy GTA Online and BringBackSinglePlayer .. How the best game slowly became the worst :(

"Are you having fun? You remember fun? It's that thing you pretend to have while documenting every moment, meal and faux memory. I've got a challenge for you: turn your phone off for a day and see how uncomfortable you get." -- Cara Delevingne

@TR71777 Also, if your game keeps crashing, temporarily remove something big, like the mpimportexport DLC. Good chance your game will start again. Then start removing your 600 car DLC's, one by one (or roll them into several single ones). This is really very likely a running-out-of resources issue.

"Are you having fun? You remember fun? It's that thing you pretend to have while documenting every moment, meal and faux memory. I've got a challenge for you: turn your phone off for a day and see how uncomfortable you get." -- Cara Delevingne

@TR71777 Even 60 is a lot; with all mp stuff enabled, game would only allow 19 extra DLC packs for me (with the 300+ cars config). Seriously, just try unloading mpimportexport for a moment.

"Are you having fun? You remember fun? It's that thing you pretend to have while documenting every moment, meal and faux memory. I've got a challenge for you: turn your phone off for a day and see how uncomfortable you get." -- Cara Delevingne

@TR71777 You should try to edit gameconfig.xml by yourself with increasing a bit things like <PoolName>TxdStore</PoolName> <PoolName>Vehicles</PoolName>
<PoolName>VehicleStreamRequest</PoolName>
<PoolName>VehicleStreamRender</PoolName> <PoolName>HandlingData</PoolName>
<VehicleUpperLimitMP (maybe this one can help you but I never tried yet,
@CPDo you know what VehicleUpperLimit mean ? I'm wondering if it's related to tuning parts or the vehicles limits spawned in MP)<VehicleMemoryMultiplier

Please god, destroy GTA Online and BringBackSinglePlayer .. How the best game slowly became the worst :(

@TR71777 Oh and I forget you have add on ped also the same thing related to ped PedMemoryMultiplier etc

But you will loose less time trying @meimeiriver said ,
It take time to try adjusting gameconfig , I don't know if I will one day make it optimal for all the mods I use . Because nobody use the same kind of mods and have the same amount of graphic memory available.

Please god, destroy GTA Online and BringBackSinglePlayer .. How the best game slowly became the worst :(

Indeed. He should first try and determine where the cause lies. Unloading a (big) DLC like mpimportexport will give him a good indication whether it's a resource issue. If it turns out to be, he can always tweak his gameconfig later (as doing so, I might add, itself introduces new reasons for the game to crash).

"Are you having fun? You remember fun? It's that thing you pretend to have while documenting every moment, meal and faux memory. I've got a challenge for you: turn your phone off for a day and see how uncomfortable you get." -- Cara Delevingne

@meimeiriver Yeah True it's not cool if it brings more crashes lol , That's why it take times to edit it (edit replace launch play crash edit replace launch play crash etc etc)@TR71777 when you will delete some cars , start with high poly models and models without LODs

Please god, destroy GTA Online and BringBackSinglePlayer .. How the best game slowly became the worst :(